Magento Best seller and Top seller

To show bestseller at Top seller at home page.so that best products should come on home page.For that follow the following steps
Create a Bestseller.php file and put it here :



app/code/local/Mage/Catalog/Block/Product/Bestseller.php

class Mage_Catalog_Block_Product_Bestseller extends Mage_Catalog_Block_Product_Abstract{
    public function __construct(){
        parent::__construct();
        $storeId = Mage::app()->getStore()->getId();
        $products = Mage::getResourceModel('reports/product_collection')
            ->addOrderedQty()
            ->addAttributeToSelect('id')
            ->addAttributeToSelect(array('name', 'price', 'small_image'))
            ->setStoreId($storeId)
            ->addStoreFilter($storeId)
            ->setOrder('ordered_qty', 'desc'); // most best sellers on top
        Mage::getSingleton('catalog/product_status')->addVisibleFilterToCollection($products);
        Mage::getSingleton('catalog/product_visibility')->addVisibleInCatalogFilterToCollection($products);
        $products->setPageSize(3)->setCurPage(1);
        $this->setProductCollection($products);
    }
}

Create bestseller.phtml file and put it here :
app/design/frontend/yourtheme/template/catalog/product/bestseller.phtml

<?php if (($_products = $this->getProductCollection()) && $_products->getSize()): ?>
<div class="home-page-cntr">
<?php $i=0; foreach ($_products->getItems() as $_product): ?>
    <?php if ($i>5): continue; endif; ?>
<div class="home-page-item">
        <div class="home-page-img">
            <a href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $this->htmlEscape($_product->getName()) ?>">
                 <img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(65,65); ?>" alt="<?php echo $this->htmlEscape($_product->getName()) ?>"/>
            </a>
            <?php echo $_product->getDescription(); //also getShortDescription ?>
        </div>
        <div class="home-page-txt">
            <p><a class="product-name" href="<?php echo $_product->getProductUrl() ?>" title="<?php echo $this->htmlEscape($_product->getName()) ?>)"><?php echo $_product->getName() ?></a></p>
            <?php //echo $this->helper('review/product')->getSummaryHtml($_product, 'short') //product review link ?>
            <?php echo $this->getReviewsSummaryHtml($_product, false, true)?>
            <?php //echo $this->helper('catalog/product')->getPriceHtml($_product) ?>
            <?php echo $this->getPriceHtml($_product) ?>
            <?php echo $_product->getProductId(); ?>
            <?php if($_product->getevent_date()) {echo $_product->getevent_date();} ?>
</div>
</div>
<?php $i++; endforeach; ?>
<?php for($i;$i%5!=0;$i++): ?>
    <?php endfor ?>
</div>
<?php endif; ?>

now put this line where you want to view best selling products..
you can use through block or through XML also
{{block type="catalog/product_bestseller" template="catalog/product/bestseller.phtml"}}

<block type="catalog/product_bestseller" name="bestseller" template="catalog/product/bestseller.phtml">

Hope this will help you!